Nail-making machine.



E. WALTON & F. W. MAGKE.

NAIL MAKING MACHINE.

nrmou'ron IILBD D30. 7, 1907.

91 9 ,095. Patented Apr. 20, 1909.

5 SHEETB-SHEET 1.

lmmmow Wifnzooeo w 8% o E. WALTON & 1?. W. MAGKE.

NAIL MAKING MACHINE.

APPLIOATION FILED DEC. 7, 1907.

Patented Apr. 20, 1909.

6 sums-sum 2.

al boznu g G W W E. WALTON & F. W. MAOKE.

NAIL MAKING mcnmn.

APPLICATION FILED DEC. 7, 1907, 91 9 ,095, Patented Apr. 20, 1909. BHBET3.

E. WALTON &; I. W. MACKE.

NAIL MAKING MACHINE.

APPLICATION FILED DEC. 7, 1907.

9 1 9,095 Patented Apr. 20, 1909.

E. WALTON 8: I. W. MAGKB.

NAIL MAKING MACHINE.

APPLICATION FILED no. 7, 1907.

919,095. Patented Apr. 20, 1909.

5 SHEETS-SHEET 5.

having shanks.

UNITED srArEs PATENT OFFICE.

ERNEST WALTON AND FREDERICK W. MACKE, OF KOKOMO, INDIANA, ASSIGNORS BOH. B. SHERMAN MANUFACTURING COMPANY, .OFBATTLE CREEK, MICHIGAN, AGORPORATIGN or MICHIGAN.

' l IL-MAKING QH NE- Patented. April 20, 1909.!

Application filed December 7, 1907. Serial No. 406,597.

To all whom it may concern:

Be it known that we, ERNEST WALTON and FREDERICK W. theme, of Kokomo,Howard county, Indiana, have invented certain new and usefulImprovements in N ail-Making Machines; and we hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, which form part of thisspecification.

This invention is an improvement in nail making machines, and .is anovel machine especiall designed for making roofin nails arge sheetmetal heads an wire The object of the invention is to provide a machinewhereby the wire from which the shanks are formed, and the strap-metalfrom which the heads are formed, are fed forward on intersecting lines,and, preferably, in its operation a proper length of wire is fed towardthe operating point and clamped by suitable dies; and a proper length ofstrapmetal is fed toward the operating point and stopped; then a disk ornail head is punched from the strap and simultaneously-forced onto theend of the wire, the wire punching the head; then the head is preferablyconcavo-convexed by a further movement of the dies; then the shank isriveted to the- 1161 by means of a header-rod which preferably operatesthrough the male punching die. Then the heading and unching dies areretracted and the wire, wit the attached head, is again fed forward thelength of a nail; then the complete nail is severed from the wire bymeans of cutting dies, which preferably are also pointing dies. Thefeeding forward of the wire with the attached head, is merely arepetition of the first mentioned step of feeding the wire; and when thenail is severed from the wire, the end of such wire is in position tohave another head attached thereto. The wire is clamped after each nailis severed therefrom and remains clamped until another head has beenattached thereto as described. Thus at each operation of the machine anail-head may be blanked from the strap metal, forced onto the end ofthe wire, and concavo-convex'ed, and the wire is swaged thereto; thenthe ir is f d forward a i e gth, nd a comp te n s se re he efr is cycleo operati ns s complet for ach op r tion view of the machine.

'vertical sectional view on line of the machine, and preferably for eachro tation of the main shaft thereof. 1

The invention will be more clearlyunderstood from the followingdescription of the machine illustrated in the accompanying drawingswhich represent a ractical em bodiment of the invention an the essentialfeatures thereof, and the construction and combination of partsconstituting the invention and for which protection is desired herein,are set forth in the appended claims.

In said drawingsFigure 1 is a top plan Fig. 2 is a side elevation ofFig. 1. Fig. 3 is an enlarged plan view of the die-portions of themachme, with the strap feeding devices removed-and the dies opened. Fig.4 is a horizontal section through Fig. 4, with the dies closed. Fig. 5is a transverse vertical section on line 5'5, Fig. 3. Fig. 6 is atransverse section on line 6-6, Fig. 1. Fig. 7 is a view similar to Fig.4 showing the position of the parts previous to the nail being headed.Fig. 8 is a detail 8-8 Fig. 5. Fig. 9 is a detail sectional view on line99, Fig. 8. Fig. 10 is a detail view of the wire clamping dies. Fig. 11is a perspective view of a complete roofing nail. Fig. 12 is a sideelevation of the drive side of the machine. Fig. 13 is a bottom planview partly broken away; and Fig. 14 is a plan view of the strap feedingdevice.

The wire w is led from a reel or coil (not shown) and fed by suitablemeansv to the clamping die, which is preferably composed of similaropposite parts 1, 1, (see Figs. 3, 4, and 10); cac part 1 has a wireguiding channel 1 adapted to firmly bite the wire 10 when the die isclosed thereon. The opposite parts 1 of the clamping die arerespectively operated by means of a push-pin 2 inter- Pos d b t een theb o k a d short arm f a ev r pi o ed to a pi attac d o the p of th s n fm an the l ng arm f lever carr es a ol r 2 hi h ease as a attached; t9th ma n ha t S;

is suitably journaled in bearings F on the top of the main frame. Theroller 2 may be held in contact with the cam 2 b means of a spring 2 asshown in Fig. -1, suc spring tending to move the lever and cause block 2to separate from block 2 and open die 1. The block 2 ma be connected tothe lever 2 by alink 2 0 any suitable kind, so that it will be drawnaway from block 2-, and open die 1, when the lever 2 is moved by spring2 A bolt 2 may be tapped through the lever 2 andengage pin 2, so as toregulate and adjust the amount and time of pressure exerted by cam 2upon the dies through lever 2. The block 2 may be adjustably mounted ina holder casting 2 securely attached to a projection F on top of themain frame; said block 2 being secured in position by bolts 2 2. Theblock 2 preferably has a dove-tailed groove-and-slot connection with theholder 2 as shown.

The parts 1, of the wire clamping die, also form 1n the example shown,the female mem er of the blanking die for cutting the nail-heads out ofthe metal strap .9. As

shown in Figs. 3, 4, 7, 10, the forward end of parts 1, 1, are providedwith opposite semicircular recesses 1 1 which when the die is closedform a circular chamber or die, concentric to the wire groove 1 (seeFigs. 4, 7 and 10) and preferably the bottoms of the recesses 1 1areconvexed as shown at 1, for a purpose hereinafter described.

3 designates a male blanking die which is adapted to cooperate with thefemale blanking die 1 in the ends of clamping die 1 and out a circularnail head from the metal strap 8 which is fed between the dies 1 and 3and aeross the line of the wire feed by suitable means as hereafterexplained. This male blanking die 3 is removabl fastened to a slide 3which is guided in al ox F attached to the top of the main frame, andsaid slide has an extension 3 which is attached to an eccentric box 3inclosing an eccentric or crank 3 on shaft S, so that for each rotation3f shaft S the die 3 is moved to and from the Arranged within the die 3is a header-rod 4, which is adapted to operate through an axial bore inthe die 3 and slide 3 and is connected to a slide 4*, guided in a box Fon the frame, and connected to an eccentric-box 4 inclosmg a crank 4f onshaft S.

Located in front of the blocks 2, 2, are cutting and pointing dies 5,which are preferably detachably secured in recesses in blocks 5adjustably secured to arms 5 pivotall mounted on rods f attached to bracets f"'depending from the mainframe. These arms 5 may have dependingortions 5 against which press springs 5" w ch are so arranged as to tendto rock the arms 5' and normally se arate the cuttin dies 5.

As shown in igs. 5, 8 and 9, t e cutting fastened where adjusted by die'5 is secured in block 5, by tap-bolts 5"; The block 5 is adjustablevertically on arms 5,- by means of a setting bolt 5, and can be means ofa threaded shank 5' and nut 5 hese various adjustments providing meansfor adjusting the cutting and pointing dies 5 accurately.

The cutting dies are moved inward toward the wire at the proper time bymeans of levers 5 which may be pivoted at 5 on top of the main frame,and have bolts 5 tapped through their short arms engaging the blocks 5as shown in Figs. 1 and 3. The long arms of said levers 5 carry rollers5 engaging grooved cams 5 fastened on shaft S as shown.

The wire '11; may be fed forward to dies 1 by any suitable means. Asshown, it is first passed through a straightener W, of any suitableconstruction, attached to one end of the main frame, and then ledbetween a fixed jaw 6 and a pivoted jaw 6 attached to a slide 6, the jaw63* being actuated by a spring 6 and adapted to bite the wire when theslide 6 moves inward toward the dies and to slip on the wire when thedie moves away from the dies. The slide 6 is supported by a rod 6 guidedin bracket F attached to the main frame and to one end of slide 6 ispivoted a rod 6 connected to one end of an oscillating lever 6 which ispivoted on a bolt 6 on the main frame, and the other end of lever 6 isconnected by a rod 6 to a pin 6 adjustably secured to a block 6 fastenedon shaft S. The connection between rod 6 and lever 6 is preferably anadjustable one, as indicated at 6, so that the throw of the slide 6 canbe varied according to the length of wire it is desired to feed into themachine at each operation. The length of wire fed determining the lengthof the nail shanks.

The strap 8 may be fed vertically downward between the dies 1 and 3 bymeans of rollers 7 on shafts 7 journaled in a bracket F mounted on topof bracket F, the said shafts 7 have intermeshing gears 7 and on one ofsaid shafts is a ratchet 7 which is engaged by a pawl 7 ivoted to lever7 loosely mounted on suc shaft 7 and oscillated thereon by means of alink 7 attached to an eccentric strap 7 and surrounding an eccentric 7on shaft S. The strap 8 is led in from a reel (not shown) through asuitable guide to the rolls 7. As shown it is passed through a guideslot 7 in a bar 7 m attached to casting F above the rolls, said slothaving a spring actuated presser late 7 1 at one end, which tends tokeep t 1e strap properly alined against the opposite end of the slot.

Preferably the wire is roughened or barbed so as to cause the nail totake a better hold in the wood. This may be accomplished in any waydesired, as by milled feed rolls. As shown 1n Fig. 4, the wire grooves 1in the parts 1 of the wire clamping die may be circular disk or ridged'uat1'1;-so that when closed u wire the "will roughen the'same as 'eatei-The aft Sma be .driven1in any suitable manner, and eachrevolutionthereof: the machine goes through a cycle-ofopera-- tions andproduces a complete nail. The cams and eccentrics are'so adjusted onshaft S that the parts all operate in proper time and sequence, and theoperation is briefly as follows: Assuming that the wire to hasbeenproperly fed forward through the clamp-' ing die 1, its end rojectinginto the recess 1' as indicated in F while the strap 8 has been fed downuntil its end .lies between the dies 3 and 1, die 3 being in retractedposition, the die 1 is then closed upon the wire by the cooperation ofcam 2 and lever 2, and while the wire is thus clamped the slide 6 movesbackward preparatory to again feeding the wire. While the wire is thusclamped by die 1, the blanking die 3 moves forward and catches the metalstrap 8, (which has been previously fed down between the dies 3 and 1,see Fig. 3), and punches a preferably nail-head H from this strap andforces said head into the female blanking die l andagainst theprojecting end of the wire, causing the latter to erforate the head; andafter the blank is orced upon the wire (see Fig. 7) the head ispreferably concavoconvexod by compression between the convex bottom 1 ofdie 1 and the concave face of die 3 (see Figs. 4 and 7). Then' while thehead H is tightly held between the dies 1 and 3 and the wire tightlyheld by the clam ing die, the header-rod 4, which has been fo lowing upthe die 3, comes into contact with the end-of the wire projectingthrough the head andswages the same to the head as shown ath in Fig. 4.The parts of the clamping die are preferably slightly recessed-aroundthe inner ends of grooves 1*, as shown at=1 in Figs. 4-7, so that aportion of the metal of the wire will be forced back and swaged againstthe inner side of the head, as shown at h in Fig. 4, and thus the headis united to the wire shank in a erfectly rigid and secure manner. Theheader-rod 4 then retreats, being followed up by die 3, and the block 2is moved so as to open the clam ing die and release the wire; whereupont e' wire is fed forward so as to push the completed head and attachedpart of the wire, out of the blanking die or recess 1 a distance equalto the desired length of the shank of the nail. Then, while the die 3and header-rod 4 are retracted (see Fig. 3), the cutting and pointingdies 5 are caused to move inward and sever a nail len th, with the headattached, from the wire. The severed and com leted nail drops out of theway before the die 3 again brings" the stra 8 against die 1. The strapfeed is operate in proper time to feed in a sufficient the} igs. 3-7,and that mean-- lengflt-of' strap to enablea=newhead to bemelted-therefrom at' themext -operation ot? iesili The block 2is'then'again moved' cause the clamping die to 1 clamp -tl'1e"wirje;

and the cycle 4 of: operations is repeated. Thus far and during eachrotation of shaft S a complete nail as s own in Fig. 11',- is formed 1nthe manner described.-

not restrict ourselves to the precise structure shown in the drawings.

Having described our invention what we claim as new and desire to secureby Letters Patent is:

1. In a wire nail machine, the combination of a wire clamping die, afemale blanking die at one end of thewire clamping die, a male--blanking die cooperating with thefemale blankin die, a header rod arraned axially within t e male clamping die, means for operating said dies"and header rod.

2. The combination 'of 'a wire-clamping die formed ofopposite membershaving wire clampin grooves in their opposed faces, andrecesses in theirouter ends forming afemale blanking-die; with a male blankin die ada ted 'to cooperate with the femaleb anking ie when the clamping die isclosed, substantially as described.

3. The combination of a wire clamping die formedof opposite-membershaving wiregrooves in their'opposed faces and recesses in their outerends orming a'female blankingdie concentric-to the wire; with amaleblanking die adapted to cooperate with the female I blanking die whenthe clamping die is closed;

a header rod operating axially of the male blanking die; and means foroperating said dies and header rod.

4. The combination of wire clamping dies, head blanking dies in axialalinement therewith, a header rod operating through the blanking diesand means for operating the wire clam ing and head blanking dies andheader rod? 5. In a nail making machine the combination of wire clampingdies, means for feeding a Wire to said dies, means for feeding a strapin front of the clampin dies, means for blanking a nail head from t estrap and forcing it upon the wire shank held by the clamping dies,means for swaging the shank to the head, and means for thereaftercutting the wire into nail lengths.

6. In a nail making machine the combination of means for feedin a wire;dies for holding the wire; means or feeding a strap tion of means forfeeding a wire; dies for hlding the wire; means for feeding a strap toin terseet the wire; means for blanking a nail head from the strap andforcingit upon the wire, the wire puncturing the head; means for swagingthe wire to the head; and means for Q severing a nail length having thehead attached,-from the wire.

8. In a machine for making roofing nails, the combination of a wireclamping die; means for feeding a strap across the line of i the wirefeed; dies for blanking a head from the strap and forcing it upon theend of the wire held by the dies, the wire puncturing the head; meansfor then swaging the end of the wire to the head; means for feeding thewire forward through the clamping die after the head is attachedthereto; and means for severing a nail length of wire having the headattached-from the wire.

9. In a nail making machine, the combination of wire feeding means; awire clamping die means for feeding ametal strap across the line of wirefeed, a female blanking die at the end of the wire clamping die, a maleblanking die opposite the female die; means for swaging the head to thewire, and means for severing a nail length from the wire after the headis attached thereto.

10. In combination, a wire elampingdie; means for opening and closingsaid die; means for feeding a wire through said die when opened andafter the head has been attached thereto; head blanking dies in axialalinement with the clamping die; means for feeding a metal strap acrossthe line of wire feed and between the male blanking die and the clampingdie, and: means for 0 erating the blanking die to cut a head fromt estrap and force it upon the end of the wire held by the clam ing die;with means to rivet the wire to tie head, and means for severim a naillength from the wire after the head as been attached thereto.

11. In a nail making machine, the combination of means for feeding alength of Wire; a die for clamping the Wire; means for feed ing a metalstrap; dies for blanking a head from such stra and impaling it upon theend of the Wire held in the clamping die; means for swaging the Wire tothe head, the wire feeding means operating to move the wire forwardafter the head is attached; and means for thereafter severing the headedportion of the wire into a nail length, and pointing the nail.

12. The combination of a Wire clamping die, wire cutting and pointingdies on opposite sides of the line of Wire feed, means for operatingsaid pointing dies and means for feeding a wire through the clampingdies; with means for feeding a metal strap across the line of Wire feed,and means for blanking heads from said strap and impaling same upon theend of the wire prior to the severance thereof.

13. In a nail making machine the combination of wire clamping dies,means for opening and closing the same, a female blanking die at one endof the clamping dies, a male blanking die, means for reciprocating saidmale blanking die, a header rod arranged axially of and operatingthrough the male blanking die, and means for operating said header rod.

In testimony that we claim the foregoing as our own, we affix oursignatures in pres ence of two Witnesses.

ERNEST WALTON. FREDERICK W. MACKE In presence of WILLFORD C. RoBINsoN,FRANK M. ANnREss.

